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e2dea95082
Fixes/suppresses all warnings: 1. Fixes https://github.com/flutter/flutter/issues/162695 2. Suppresses warnings about the various `*Variant*` imports that we use being deprecated, with comments linking to https://github.com/flutter/flutter/issues/166550 to migrate to the variant api. 3. Fixes some unused elvis operators and unneeded types provided for declarations that AGP complains about, e.g. `val fooString: String = "a string"`, and use of deprecated string related methods. 4. Follows up on https://github.com/flutter/flutter/pull/166277, as we were getting a warning mentioned in this comment https://github.com/flutter/flutter/pull/166277#issuecomment-2780184486. 5. Suppresses some warnings about unused code where the analysis couldn't properly detect it being used (i.e., it isn't unused) (4) is more opinionated, let me know if you think it should be done in a follow up. ## Pre-launch Checklist - [x] I read the [Contributor Guide] and followed the process outlined there for submitting PRs. - [x] I read the [Tree Hygiene] wiki page, which explains my responsibilities. - [x] I read and followed the [Flutter Style Guide], including [Features we expect every widget to implement]. - [x] I signed the [CLA]. - [x] I listed at least one issue that this PR fixes in the description above. - [x] I updated/added relevant documentation (doc comments with `///`). - [x] I added new tests to check the change I am making, or this PR is [test-exempt]. - [x] I followed the [breaking change policy] and added [Data Driven Fixes] where supported. - [x] All existing and new tests are passing. If you need help, consider asking for advice on the #hackers-new channel on [Discord]. <!-- Links --> [Contributor Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#overview [Tree Hygiene]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md [test-exempt]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#tests [Flutter Style Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md [Features we expect every widget to implement]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md#features-we-expect-every-widget-to-implement [CLA]: https://cla.developers.google.com/ [flutter/tests]: https://github.com/flutter/tests [breaking change policy]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#handling-breaking-changes [Discord]: https://github.com/flutter/flutter/blob/main/docs/contributing/Chat.md [Data Driven Fixes]: https://github.com/flutter/flutter/blob/main/docs/contributing/Data-driven-Fixes.md --------- Co-authored-by: Gray Mackall <mackall@google.com>